EP 1215737 A3 20050511 - Polarization apparatus and polarization method of coaxial flexible piezoelectric cable

Title (en)

Polarization apparatus and polarization method of coaxial flexible piezoelectric cable

Title (de)

Polarisationsvorrichtung und Polarisationsverfahren für ein flexibles piezoelektrisches Koaxialkabel

Title (fr)

Appareil de polarisation et procédé de polarisation pour un câble coaxial piézoélectrique flexible

Publication

EP 1215737 A3 20050511 (EN)

Application

EP 01129761 A 20011213

Priority

JP 2000381866 A 20001215
JP 2001077883 A 20010319
JP 2001077884 A 20010319
JP 2001234555 A 20010802

Abstract (en)

[origin: EP1215737A2] A polarization apparatus is provided wherein a piezoelectric body tube 3 is wound around a first rotation drum 5 and a second rotation drum 6 and a coaxial flexible piezoelectric body 2 is polarized while the piezoelectric body tube 3 is wound. According to the polarization apparatus, polarization can be conducted except for the coaxial flexible piezoelectric body 2 of the portion containing a defect and a defect existing in the piezoelectric body tube 3 of a given length can also be detected be fore an outer electrode 4 is formed. <IMAGE>

IPC 1-7

H01L 41/087; H01L 41/22

IPC 8 full level

H10N 30/045 (2023.01); H10N 30/098 (2023.01); H10N 30/60 (2023.01); G01R 29/22 (2006.01)

CPC (source: EP US)

H10N 30/045 (2023.02 - EP US); H10N 30/098 (2023.02 - EP US); H10N 30/60 (2023.02 - EP US); G01R 29/22 (2013.01 - EP US)

Citation (search report)

[A] US 4670074 A 19870602 - BROUSSOUX DOMINIQUE [FR], et al
[DA] US 4568851 A 19860204 - SONI PRAVIN L [US], et al
[A] EP 0146272 A2 19850626 - RAYCHEM LTD [GB]
[A] US 4079437 A 19780314 - SHEFFIELD WILLIAM F
[A] US 5663606 A 19970902 - BEURRIER HENRY RICHARD [US]
[XAY] GB 2123602 A 19840201 - RAYTHEON CO
[XA] EP 0156952 A2 19851009 - PENNWALT CORP [US]
[Y] EP 0014043 A1 19800806 - INT STANDARD ELECTRIC CORP [US]

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family (publication)

EP 1215737 A2 20020619; EP 1215737 A3 20050511; CN 1323442 C 20070627; CN 1372333 A 20021002; US 2002140323 A1 20021003; US 6593681 B2 20030715

DOCDB simple family (application)

EP 01129761 A 20011213; CN 01138164 A 20011215; US 2047401 A 20011212